On March 21, 2014 at 1:30 pm, in this spring day, the “Academic Salon on the Diagnosis and Treatment of Small Pulmonary Nodules” was successfully held in the academic lecture hall of the Third People’s Hospital of Shanghai Jiaotong University School of Medicine. The seminar was organized by the Department of Thoracic Surgery and the Department of Respiratory Medicine and the Department of Radiology, and was a wonderful lecture for colleagues from various hospitals in Baoshan District, Shanghai, as well as staff and students from the School of Clinical Medicine. Zhu Zhijun Academic Seminar Salon of the Department of Cardiothoracic Surgery, North Hospital of the Ninth People’s Hospital of Shanghai Jiaotong University School of Medicine received strong support from the hospital leadership and invited President Chen Guoqiang to give a speech for the meeting. This academic conference was presented by Director Yang Zhiyin from the Department of Thoracic Surgery, Director Ma Jiayun from the Department of Respiratory Medicine, and Professor Zhao Jiangmin from the Department of Radiology. The presentation was very informative and beneficial to the audience. The experts also reminded the audience not to be overly nervous because of small lung nodules found during physical examinations, as “small lung nodules” are not equal to lung cancer, but there are some people who need attention and should not be taken lightly. However, there are some people who need to be aware and should not be taken lightly. Those who have the following conditions need to actively consult their physicians for further examination and treatment: 1) those who are >40 years old; those who have symptoms such as chest pain, cough, unexplained blood in sputum, weight loss, etc.; 2) those who have a family history of malignant tumors, especially a genetic history of lung cancer; 3) those who have been smoking for a long time, >20 years, >20 cigarettes per day, or those who have passive smoking; 4) those who have nodules. smokers; 4, those with nodules of about 0.8 cm or more in diameter with burr-like, lobulated or hairy glass-like changes; 5, those with recurrent pneumonia and segmental atelectasis in the same area. After the lecture, the doctors in the conference hall asked questions and actively exchanged ideas, and the three directors gave enthusiastic answers, and the atmosphere was active, which received good results.